283747788947 has 32 divisors (see below), whose sum is σ = 346269772800. Its totient is φ = 231976631040.

The previous prime is 283747788941. The next prime is 283747788971. The reversal of 283747788947 is 749887747382.

It is not a de Polignac number, because 283747788947 - 2²⁰ = 283746740371 is a prime.

It is a super-2 number, since 2×283747788947² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (283747788941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2733872 + ... + 2835762.

It is an arithmetic number, because the mean of its divisors is an integer number (10820930400).

Almost surely, 2^283747788947 is an apocalyptic number.

283747788947 is a deficient number, since it is larger than the sum of its proper divisors (62521983853).

283747788947 is a wasteful number, since it uses less digits than its factorization.

283747788947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102288 (or 102274 counting only the distinct ones).

The product of its digits is 1062125568, while the sum is 74.

The spelling of 283747788947 in words is "two hundred eighty-three billion, seven hundred forty-seven million, seven hundred eighty-eight thousand, nine hundred forty-seven".